1. It's Not a 3.7 volt, not a 5 volt it's any voltage you like when it's a buzz pro
2. Any voltage any time with The buzz pro
3. Some days you feel like a 6 volt some day you feel like a 3.7 volt and for all the day in between you feel like a buzz pro
4.3.7 volts is for girls 6 volts is for...